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MPI – Troubleshooting 13B-39 INSPECTION CHART FOR TROUBLE SYMPTOMS Trouble symptom Inspection Reference page Communication II is Communication with all systems is not possible. 1 13B-40 with MUT- II is impossible. Communication with engine-ECU only is not possible. 2 13B-40 Engine warning The engine warning lamp does not illuminate right after the 3 13B-41 related parts The engine warning lamp remains illuminating and never goes 4 13B-41 Starting No initial combustion (starting impossible) 5 13B-42 Initial combustion but no complete combustion 6 13B-43 Long time to start (improper starting) 7 13B-44 Idling stability Unstable idling (Rough idling, hunting) 8 13B-45 (Improper idling) Idling speed is high. (Improper idling speed) 9 13B-47 Idling speed is low. (Improper idling speed) 10 13B-47 Idling stability When the engine is cold, it stalls at idling. (Die out) 11 13B-48 (Engine stalls) When the engine becomes hot, it stalls at idling. (Die out) 12 13B-49 The engine stalls when starting the car. (Pass out) 13 13B-51 The engine stalls when decelerating. 14 13B-51 Driving Hesitation, sag or stumble 15 13B-52 The feeling of impact or vibration when accelerating 16 13B-53 The feeling of impact or vibration when decelerating 17 13B-53 Poor acceleration 18 13B-54 Surge 19 13B-55 Knocking 20 13B-56 Dieseling 21 13B-56 Too high CO and HC concentration when idling 22 13B-57 Fans (radiator fan, A/C condenser fan) are inoperative 23 13B-58 |